1 During the terrifying experience of sleep paralysis, the brain is temporarily both awake and asleep. It can happen to anyone but is especially common in survivors of trauma and war.
"Fainting" goats bave an inherited deficit in the neural control of their muscles. They collapse when surprised. Image courtesy of Sharon Reeves, R Fainting Farm
2 You have a fat head: Neuron cell membranes are made from fatty acids.
3 About 125 to 150 milliliters of cerebrospinal fluid (CSF) fills the space between the cerebral cortex and the skull. Spinal taps, which withdraw some of this fluid, can cause a short-term headache from the reduced CSF pressure.
4 The most common kind of vertigo happens when tiny calcium crystals in the inner ear detach and clump together, making the world seem to spin. Usually it is treated with head exercises that dislodge the calcium clusters.
5 Depression can cause ...
